/Engine/Source/Editor/UnrealEd/Classes/Factories/Factory.h
Helper function to sort an array of factories by their import priority - use as a predicate for Sort
static bool SortFactoriesByPriority ( const [UFactory](API\Editor\UnrealEd\Factories\UFactory) & A, const [UFactory](API\Editor\UnrealEd\Factories\UFactory) & B )